Sudden error highlights where there aren't any

[DLochmelis33]

Issue Type: Bug

Just writing a small C++ project. When I'm not editing any code, 6-7 places (possibly in multiple files) suddenly get highlighted as errors. They may stay like so for a couple of seconds and turn normal again, or they get stuck in such state, then commeting-uncommenting any affected line fixes the problem.

The following ones are usual: "no known conversion between type [A] and [A]", or it doesn't see a type when it clearly is imported, or it pretends that function does not fit its own signature.

Notice that the project successfully compiles and runs with these 'errors' that are quite critical. If necessary, I can send a copy of this little (around 500 lines) project, there's nothing private about it.

Extension version: 0.2.2 VS Code version: Code 1.41.1 (26076a4de974ead31f97692a0d32f90d735645c0, 2019-12-18T15:04:31.999Z) OS version: Linux x64 5.3.0-28-generic snap

System Info

Item	Value
CPUs	AMD A6-7310 APU with AMD Radeon R4 Graphics (4 x 1912)
GPU Status	2d_canvas: unavailable_software flash_3d: disabled_software flash_stage3d: disabled_software flash_stage3d_baseline: disabled_software gpu_compositing: disabled_software metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: disabled_off rasterization: disabled_software skia_renderer: disabled_off surface_control: disabled_off surface_synchronization: enabled_on video_decode: disabled_software viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off webgl: unavailable_software webgl2: unavailable_software
Load (avg)	0, 1, 1
Memory (System)	6.70GB (0.26GB free)
Process Argv	--force-user-env --no-sandbox --unity-launch --no-sandbox
Screen Reader	no
VM	0%